ZealOS/docs/Demo/MessageLoop.ZC.html
2021-12-11 06:10:58 -05:00

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<pre style="font-family:monospace;font-size:12pt">
<a name="l1"></a><span class=cF1>U0</span><span class=cF0> MessageLoop()
<a name="l2"></a>{
<a name="l3"></a> </span><span class=cF9>I64</span><span class=cF0> arg1, arg2, message_code;
<a name="l4"></a> </span><span class=cF6>&quot;Use </span><a href="https://zeal-operating-system.github.io/ZealOS/Kernel/KernelA.HH.html#l3881"><span class=cF4>message_code</span></a><span class=cF6> defines in your programs instead of hardcoded nums.\n&quot;</span><span class=cF0>
<a name="l5"></a> </span><span class=cF6>&quot;&lt;ESC&gt; to Exit\n&quot;</span><span class=cF0>;
<a name="l6"></a>
<a name="l7"></a> </span><span class=cF2>//We don't want the mouse buttons to reposition the cursor,</span><span class=cF0>
<a name="l8"></a> </span><span class=cF2>//so we inhibit the window mgr from processing them.</span><span class=cF0>
<a name="l9"></a>
<a name="l10"></a> </span><span class=cF5>Fs</span><span class=cF0>-&gt;win_inhibit = </span><span class=cF3>WIF_SELF_MS_L</span><span class=cF0> | </span><span class=cF3>WIF_SELF_MS_R</span><span class=cF0>;
<a name="l11"></a>
<a name="l12"></a> </span><span class=cF1>do</span><span class=cF0>
<a name="l13"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l14"></a> message_code = </span><span class=cF5>MessageGet</span><span class=cF0>(&amp;arg1, &amp;arg2, ~</span><span class=cF7>(</span><span class=cFE>1</span><span class=cF0> &lt;&lt; </span><span class=cF3>MESSAGE_NULL</span><span class=cF7>)</span><span class=cF0>);
<a name="l15"></a> </span><span class=cF6>&quot;CMD:%02X ARG1:%08X ARG2:%016X\n&quot;</span><span class=cF0>, message_code, arg1, arg2;
<a name="l16"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l17"></a> </span><span class=cF1>while</span><span class=cF0> (message_code != </span><span class=cF3>MESSAGE_KEY_DOWN</span><span class=cF0> || arg1 != </span><span class=cF3>CH_ESC</span><span class=cF0> &amp;&amp; arg1 != </span><span class=cF3>CH_SHIFT_ESC</span><span class=cF0>);
<a name="l18"></a>
<a name="l19"></a> </span><span class=cF5>MessageGet</span><span class=cF0>(,, </span><span class=cFE>1</span><span class=cF0> &lt;&lt; </span><span class=cF3>MESSAGE_KEY_UP</span><span class=cF0>);
<a name="l20"></a>
<a name="l21"></a> </span><span class=cF5>Fs</span><span class=cF0>-&gt;win_inhibit = </span><span class=cF3>WIG_USER_TASK_DEFAULT</span><span class=cF0>;
<a name="l22"></a>}
<a name="l23"></a>
<a name="l24"></a>MessageLoop;
<a name="l25"></a>
<a name="l26"></a></span><span class=cF2>// Press &lt;CTRL-SHIFT-L&gt; and &quot;Insert </span><a href="https://zeal-operating-system.github.io/ZealOS/Kernel/KernelA.HH.html#l4131"><span class=cF4>ASCII</span></a><span class=cF2>/</span><a href="https://zeal-operating-system.github.io/ZealOS/Doc/CharOverview.DD.html#l1"><span class=cF4>ScanCode</span></a><span class=cF2>&quot;.</span><span class=cF0>
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